Acciai per utensili (Discorso generale)
Annealing: Heat to 1650?F (900?C), hold 2 hours, slow cool no faster than 25?F (15?C) per hour to 1100?F (595?C), then furnace cool or cool in still
Acciai per utensili (Discorso generale)
Forging: 2100?F (1150?C) Do not forge below 1750?F (950?C).
Acciai per utensili (Discorso generale)
Austenitize 1950?F (1065?C). Quench to below 125?F (50?C). Double temper at 600?F (315?C) 2 hrs. minimum each temper. Cool to hand warm between
Acciai per utensili (Discorso generale)
Quench: Air or positive pressure quench (2 bar minimum) to below 125?F (50?C), or salt or interrupted oil quench to about 1000?F (540?C), then air
Acciai per utensili (Discorso generale)
Straightening: Best done warm 400-800?F (200-430?C)
Acciai per utensili (Discorso generale)
Annealed Parts: Heat to 1100-1300?F (595-705?C), hold 2 hours, then furnace cool or cool in still air. Hardened Parts: Heat to 25-50?F (15-30?C
Acciai per utensili (Discorso generale)
Austenitize: 1900-2000?F (1035-1095?C), hold time at temperature 15-30 minutes.
Acciai per utensili (Discorso generale)
Hardening Preheat: Heat to 1550-1600?F (845-870?C) Equalize.
Acciai per utensili (Discorso generale)
Temper: Double temper at 400-750?F (200-400?C). Hold for 2 hours minimum each time.
Acciai per utensili (Discorso generale)
When tempering at 400-750?F (200-400?C), freezing treatments may be necessary to minimize retained austenite.
Acciai per utensili (Discorso generale)
NOTE: For optimum stress relieving, CPM S30V may be tempered at 1000-1025?F (540-550?C). Tempering in this range may result in a slight decrease in
Accademia della crusca
